Keith Grayson was born August 14, 1966 in New York City, New York. Grayson was originally a prominent "graffiti artist., having been featured in the 1983 hip hop documentary, "Style Wars. One of Grayson's better known "tags was "Dez". With decline of the graffiti movement in the late 1980s, Dez began dealing with narcotics and consequently ended up in jail by the late 1980s. Grayson was released from jail in 1990, and claims to have abstained from using drugs ever since. He is from East River Projects located in east Harlem New York

After releasing "More Than Just a DJ in 2010, Rhyme or Die is scheduled for release in 2015. The album's first two single "60 Second Assassins" featuring "Busta Rhymes, "Layzie Bone, "Twista and "Jaz-O and "The Kings of the Streets" featuring "DJ Khaled, "DJ Drama, DJ Doo Wop and Fly Nate were released in 2011. In 2013, "About That Life" featuring "Fabolous, "T-Pain, "Rick Ross, "Nelly and "French Montana was released as a single from Rhyme or Die. It debuted and peaked at #54 on the Hot R&B/Hip-Hop Songs chart, making it one of Kay Slay's most successful singles to date. In the beginning of 2014, "Free Again" was released featuring "Fat Joe and "50 Cent, which came to a surprise for some seeing as how they had beef before, but have since reconciled.